CAD CAD Specialist Mechanical Design and Engineering 2

Question 1

In mechanical CAD, what is 'interference detection' used for in assembly design?

Accepted Answer

Identifying where parts overlap or physically intersect within an assembly

Answer

Interference detection checks whether any components in an assembly physically overlap, which would indicate a design error before manufacturing.

Question 2

What is the difference between 'first-angle' and 'third-angle' projection in engineering drawings?

Accepted Answer

They differ in which quadrant the object is placed, resulting in different view arrangements on the drawing

Answer

First-angle projection (used in Europe) places views on the opposite side of the object, while third-angle projection (used in the US) places views adjacent to the face being shown.

Question 3

What is a 'tolerance stack-up' analysis in mechanical design?

Accepted Answer

Calculating the cumulative effect of individual part tolerances on a critical assembly dimension

Answer

Tolerance stack-up analysis determines how individual part tolerances accumulate and affect a key assembly gap, clearance, or interference dimension.

Question 4

In Autodesk Inventor, what is 'iLogic' used for?

Accepted Answer

Automating design rules, configurations, and model parameters using rules-based logic

Answer

iLogic in Inventor allows users to create rules-based automation that drives parameters, suppresses features, and configures models based on conditions.

Question 5

What is a 'design table' (configuration table) in SolidWorks or similar CAD tools?

Accepted Answer

A spreadsheet-driven method to create multiple part configurations from one model

Answer

A design table is an embedded Excel spreadsheet that drives multiple configurations of a part or assembly by changing dimensions and feature states.

(CAD) Certified Computer-Aided Design Specialist Practice Test

(CAD) Certified Computer-Aided Design Specialist Practice Test

CAD CAD Specialist Mechanical Design and Engineering 2